WO1991013824A1 - Systeme de bobinage - Google Patents
Systeme de bobinage Download PDFInfo
- Publication number
- WO1991013824A1 WO1991013824A1 PCT/GB1991/000362 GB9100362W WO9113824A1 WO 1991013824 A1 WO1991013824 A1 WO 1991013824A1 GB 9100362 W GB9100362 W GB 9100362W WO 9113824 A1 WO9113824 A1 WO 9113824A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spooler
- vanes
- spooler system
- rotary member
- line
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/02—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package
- B65H59/06—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package by devices acting on material leaving the package
Definitions
- This invention relates to a spooler system for controlling tension, and particularly to a spooler system which retains or rewinds a line such as a cable or filament on a reel under tension to avoid slack.
- Optical fibre line within the context of this invention may comprise ' bare' fibre, that is having only a primary coating, or it may comprise one or more fibres in a secondary coating or sheathing. Inadvertent bending of slack line or fibre may occur for example if a robot is used to install a line comprising optical fibres in elements of a system, and in order to reach one element the line is unwound and then the next element is closer to the reel. As the robot back-tracks or moves to the closer element, which could be a work station that has to be repeatedly visited between other elements to process the line, it would be very easy for the slack line to get pulled into kinks or loops of too tight a radius that wovild damage the fibre. The problem is particularly significant when handling optical fibres because, in view of the bend radius limitation, handling apparatus has to ensure that kinks and taut pulls where the
- SUBSTI fibre exits from an element are not produced, and in consequence more slack tends to be provided.
- a spooler device may be provided such that the line can be readily unwound from its reel and any slack line can be continuously rewound under a tension which is effective but not high enough to damage the fibre as the robot moves.
- a spooler system comprising a rotary member having a plurality of vanes and means for directing at least one jet of fluid onto the vanes to rotate the rotary member, the rotary member being adapted to provide a winding bias to a line on a reel.
- a method of providing a winding bias comprising directing at least one jet of fluid onto vanes associated with a rotary member.
- FIG. 1 illustrates one embodiment of the invention
- FIG. 2 is a sectional view of a spooler according to the embodiment shown in Figure 1.
- a spooler 1 has a cylindrical casing 2 which is mounted for free rotation about its longitudinal axis. Conveniently the casing is disposed with the longitudinal axis of rotation vertical and the casing may be mounted on a roller bearing 9 to provide the rotatability.
- a plurality of inwardly directed vanes 3 are provided extending from the interior of the side wall of the casing, and a tube (not shown) conveys air under pressure to the centre of the casing where the air is then divided into two jets directed in substantially opposite directions towards the side walls of the casing.
- the air is divided, for example as shown, by the tube separating into two branches 4 and 5 or by a closed ended tube having two vents in the side wall. Two separate supplies - could alternatively be used.
- the two jets of air impinge on the vanes 3 generally in the directions indicated by arrows 6 and 7, the force of the air on the vanes causing rotation of the casing 2 about the longitudinal axis.
- a passageway 10 is formed in the casing of the spooler passing through the centre of the top of the casing and out through the cylindrical side into a guide tube 12.
- a reel 8 of line on a fixed base 11 is attached to the spooler, preferably with the reel axis concentric with the axis of rotation of the spooler casing. Extension 18 from the fixed base allows this to be effected and also centralises the reel 8.
- the .free end of the line is passed through the guide tube and the spooler casing, and out through the top of the spooler, such that rotation of the spooler causes line to be unwound from or rewound onto the static reel 8.
- the reel 8 itself does not rotate.
- the air jets operating at a particular air pressure provide a constant bias which tends to rewind slack cable onto the reel.
- the air pressure may be variable so as to be able to adjust the bias level.
- the bias provided by the air pressure is analogous to a spring or other resilient bias but has the advantage that it is both adjustable and does not suffer from variable response (such as an elastic limit or non linear response) nor is there any limit to the length of slack that can be rewound as there would be with a spring bias: the spooler can,rotate repeatedly until all the slack is rewound.
- the branches 6 and 7 which may be used to provide the jets of air preferably do not lie at exactly 180 degrees to each other, in order to ensure that any given time when one jet is directed between adjacent vanes the other jet is impinging on a vane, thus preventing the vaned casing from adopting a balanced position.
- the jets could be arranged at a more oblique angle across the vanes.
- Air under pressure is particularly convenient fluid to use in this invention since it is readily available and will not affect the working environment after use, but it is possible to envisage the use of other fluids, such as nitrogen in a clean room, to create the force on the vanes which drives the spooler.
- the spooler will however have utility in other environments besides manufacturing, eg in optical fibre cable laying. '
- vanes 3 which are shown in Figure 1 as curved could alternatively be flat. It has been found that the provision of about twenty vanes produces a sufficiently continuous, even, rotational force on the spooler.
- vanes may be provided on the outside of the cylindrical casing with jets of air being appropriately supplied to cause the spooler to rotate. It will also be realised that the casing need not be cylindrical, but of course that is the most convenient shape.
- a tension in the cable of less than 1 Newton force has provided sufficient for preventing slack in an optical fibre being used in robot-operating wiring system, and in practice it is preferred to use a tension of less than 0.5 Newtons force, though the force required varies according to the type of fibre that is being used, for example whether it is a primary coated fibre, a package with a foamed outer coating such as that utilised in fibre blowing or a sheathed fibre or fibre bundle.
- the extension 18 can include a hollow tubed portion which acts as a conduit for the source of air passing to the jets.
- the air source would have a suitable entry point into the base portion 11.
- the spooler can be detached from the extension 18 to allow a new reel with cable or other line or filament to be substituted.
Landscapes
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
Un système de bobinage pour maintenir sous tension une ligne sur une bobine (8) pour empêcher la création de mou. La bobine (8) est montée sur un élément rotatif, comme un boîtier (1) qui est muni d'une pluralité d'aubes (3) sur lesquelles des jets d'air (6, 7) sont dirigés pour provoquer la rotation et ainsi maintenir la tension, et pour ramener tout mou éventuellement engendré vers la bobine.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9005188.9 | 1990-03-08 | ||
GB909005188A GB9005188D0 (en) | 1990-03-08 | 1990-03-08 | Spooler system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991013824A1 true WO1991013824A1 (fr) | 1991-09-19 |
Family
ID=10672225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1991/000362 WO1991013824A1 (fr) | 1990-03-08 | 1991-03-07 | Systeme de bobinage |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU7547591A (fr) |
GB (1) | GB9005188D0 (fr) |
WO (1) | WO1991013824A1 (fr) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2643075A (en) * | 1949-05-11 | 1953-06-23 | Harry W Moore | Wire unreeling device |
CH344351A (de) * | 1955-06-28 | 1960-01-31 | Reiners Walter Dr Ing | Verfahren zum Abziehen eines Fadens von feststehenden Flanschspulen oder Spinnkuchen |
FR1379808A (fr) * | 1963-10-16 | 1964-11-27 | Perfectionnements aux dispositifs de guipage et analogues | |
US3406926A (en) * | 1967-01-16 | 1968-10-22 | Copperweld Steel Co | Apparatus for unspooling wire and the like |
DE2506230B1 (de) * | 1975-02-14 | 1976-08-19 | Kabel Metallwerke Ghh | Vorrichtung zum UEberkopfabzug eines langgestreckten Gutes |
GB2097511A (en) * | 1981-04-14 | 1982-11-03 | Bailey Colin Idris Watkins | Rotary viscous damper acting as constant tension device |
-
1990
- 1990-03-08 GB GB909005188A patent/GB9005188D0/en active Pending
-
1991
- 1991-03-07 AU AU75475/91A patent/AU7547591A/en not_active Abandoned
- 1991-03-07 WO PCT/GB1991/000362 patent/WO1991013824A1/fr unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2643075A (en) * | 1949-05-11 | 1953-06-23 | Harry W Moore | Wire unreeling device |
CH344351A (de) * | 1955-06-28 | 1960-01-31 | Reiners Walter Dr Ing | Verfahren zum Abziehen eines Fadens von feststehenden Flanschspulen oder Spinnkuchen |
FR1379808A (fr) * | 1963-10-16 | 1964-11-27 | Perfectionnements aux dispositifs de guipage et analogues | |
US3406926A (en) * | 1967-01-16 | 1968-10-22 | Copperweld Steel Co | Apparatus for unspooling wire and the like |
DE2506230B1 (de) * | 1975-02-14 | 1976-08-19 | Kabel Metallwerke Ghh | Vorrichtung zum UEberkopfabzug eines langgestreckten Gutes |
GB2097511A (en) * | 1981-04-14 | 1982-11-03 | Bailey Colin Idris Watkins | Rotary viscous damper acting as constant tension device |
Also Published As
Publication number | Publication date |
---|---|
GB9005188D0 (en) | 1990-05-02 |
AU7547591A (en) | 1991-10-10 |
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